Resveratrol helps hearts in mice, but doesn’t reproduce all the benefits of low-calorie diets

By Tina Hesman Saey, 11:09 AM July 3, 2008

A substance found in red wine and touted as the chemical
equivalent of the fountain of youth probably acts more like a wellspring of
health — with warning signs.

Resveratrol, as the chemical is known, does a pretty good
job of mimicking some age-defying effects found in studies of animals on
calorie-restricted diets. But the substance doesn’t make animals live longer, a
new study shows.

At the same time, boosting levels of a key enzyme thought to
be responsible for resv...